Sawaguchi; Hideki

Patent Applications and Registrations

Patent applications and USPTO patent grants for Sawaguchi; Hideki.The latest application filed is for "apparatus, signal-processing circuit and device for magnetic recording system".

Company Profile

0.41.31

Sawaguchi; Hideki - Sunnyvale CA
Sawaguchi; Hideki - Kokubunji JP
Sawaguchi; Hideki - Tokyo JP
Sawaguchi; Hideki - Kodaira JP
Sawaguchi; Hideki - San Diego CA
Sawaguchi; Hideki - La Jolla CA
Sawaguchi, Hideki - Kodaira-shi JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Decoding techniques for correcting errors using soft information Grant 8,423,873 - Yang , et al. April 16, 2	2013-04-16
Apparatus, signal-processing circuit and device for magnetic recording system Grant 8,144,415 - Sawaguchi , et al. March 27, 2	2012-03-27
Apparatus, signal-processing circuit and device for magnetic recording system App 20110013306 - Sawaguchi; Hideki ; et al.	2011-01-20
Recording format for information date, information recording/reproducing cording circuit Grant 7,865,799 - Sawaguchi January 4, 2	2011-01-04
Method of servo writing for magnetic recording system, magnetic recording system Grant 7,839,590 - Nishida , et al. November 23, 2	2010-11-23
Apparatus, signal-processing circuit and device for magnetic recording system Grant 7,817,367 - Sawaguchi , et al. October 19, 2	2010-10-19
Decoding Techniques for Correcting Errors Using Soft Information App 20100235718 - Yang; Shaohua ; et al.	2010-09-16
Decoding techniques for correcting errors using soft information Grant 7,725,800 - Yang , et al. May 25, 2	2010-05-25
Reduced complexity error correction encoding techniques Grant 7,590,920 - Yang , et al. September 15, 2	2009-09-15
Magnetic disk apparatus having an adjustable mechanism to compensate write or heat element for off-tracking position with yaw angle Grant 7,545,595 - Hamaguchi , et al. June 9, 2	2009-06-09
Recording format for information date, information recording/reproducing cording circuit Grant 7,526,710 - Sawaguchi April 28, 2	2009-04-28
Recording/regenerating device, method of encoding error correction, method of recording data Grant 7,526,716 - Kondou , et al. April 28, 2	2009-04-28
Apparatus, signal-processing circuit and device for magnetic recording system Grant 7,502,189 - Sawaguchi , et al. March 10, 2	2009-03-10
Method of servo writing for magnetic recording system, magnetic recording system App 20090021854 - Nishida; Yasutaka ; et al.	2009-01-22
Apparatus, signal-processing circuit and device for magnetic recording system App 20090021852 - Sawaguchi; Hideki ; et al.	2009-01-22
Recording Format For Information Date, Information Recording/reproducing Cording Circuit App 20080313524 - Sawaguchi; Hideki	2008-12-18
Magnetic disk drive Grant 7,443,625 - Hamaguchi , et al. October 28, 2	2008-10-28
Method of servo writing for magnetic recording system, magnetic recording system Grant 7,436,611 - Nishida , et al. October 14, 2	2008-10-14
Signal processing method and signal processing circuit Grant 7,296,215 - Izumita , et al. November 13, 2	2007-11-13
Device and signal processing circuit for magnetic recording, magnetic recording apparatus Grant 7,259,929 - Sawaguchi , et al. August 21, 2	2007-08-21
Data decoding method and circuit and information recording and reproducing apparatus using the same Grant 7,213,195 - Sawaguchi , et al. May 1, 2	2007-05-01
Reduced complexity error correction encoding techniques App 20070043997 - Yang; Shaohua ; et al.	2007-02-22
Decoding techniques for correcting errors using soft information App 20070044006 - Yang; Shaohua ; et al.	2007-02-22
Magnetic disk drive App 20060187578 - Hamaguchi; Takehiko ; et al.	2006-08-24
Magnetic recording apparatus Grant 7,092,181 - Nishida , et al. August 15, 2	2006-08-15
Method of servo writing for magnetic recording system, magnetic recording system App 20060171052 - Nishida; Yasutaka ; et al.	2006-08-03
Data decoding method and circuit and information recording and reproducing apparatus using the same App 20060156208 - Sawaguchi; Hideki ; et al.	2006-07-13
Method of servo writing for magnetic recording system, magnetic recording system Grant 7,075,743 - Nishida , et al. July 11, 2	2006-07-11
Data recording/readback method and data recording/readback device for the same Grant 7,076,721 - Sawaguchi July 11, 2	2006-07-11
Magnetic disk apparatus having an adjustable mechanism to compensate write or heat element for off-tracking position with yaw angle App 20060132957 - Hamaguchi; Takehiko ; et al.	2006-06-22
Magnetic disk device having a write head to write by shifting in a radial direction Grant 7,057,838 - Hamaguchi , et al. June 6, 2	2006-06-06
Signal processing circuit Grant 7,046,745 - Mita , et al. May 16, 2	2006-05-16
Magnetic disk apparatus having an adjustable mechanism to compensate write or heat element for off-tracking position with yaw angle Grant 7,027,248 - Hamaguchi , et al. April 11, 2	2006-04-11
Data decoding method and circuit and information recording and reproducing apparatus using the same Grant 7,024,617 - Sawaguchi , et al. April 4, 2	2006-04-04
Magnetic recording apparatus App 20050270676 - Nishida, Yasutaka ; et al.	2005-12-08
Device and signal processing circuit for magnetic recording, magnetic recording apparatus App 20050237651 - Sawaguchi, Hideki ; et al.	2005-10-27
Recording/regenerating device, method of encoding error correction, method of recording data App 20050216818 - Kondou, Masaharu ; et al.	2005-09-29
Device and signal processing circuit for magnetic recording, magnetic recording apparatus Grant 6,912,100 - Sawaguchi , et al. June 28, 2	2005-06-28
Digital magnetic recording/reproducing apparatus Grant 6,873,665 - Kobayashi , et al. March 29, 2	2005-03-29
Signal processing method and signal processing circuit App 20050044468 - Izumita, Morishi ; et al.	2005-02-24
Recording format for information date, information recording/reproducing cording circuit App 20040205383 - Sawaguchi, Hideki	2004-10-14
Device and signal processing circuit for magnetic recording, magnetic recording apparatus App 20040190172 - Sawaguchi, Hideki ; et al.	2004-09-30
Data recording/readback method and data recording/readback device for the same App 20040158791 - Sawaguchi, Hideki	2004-08-12
Data recording/reproducing signal processing circuit for magnetic recording, and perpendicular magnetic recording/reproducing apparatus using it Grant 6,741,412 - Sawaguchi , et al. May 25, 2	2004-05-25
Decoding circuit using path sequence including feed-back type path sequence storing blocks Grant 6,725,418 - Sawaguchi , et al. April 20, 2	2004-04-20
Magnetic disk apparatus having an adjustable mechanism to compensate write or heat element for off-tracking position with yaw angle App 20040027709 - Hamaguchi, Takehiko ; et al.	2004-02-12
Data recording/readback method and data recording/readback device for the same Grant 6,668,349 - Sawaguchi December 23, 2	2003-12-23
Magnetic recording apparatus App 20030223147 - Nishida, Yasutaka ; et al.	2003-12-04
Method of controlling read write operation of a magnetic disk apparatus Grant 6,657,805 - Nishida , et al. December 2, 2	2003-12-02
Magnetic disk drive App 20030189774 - Hamaguchi, Takehiko ; et al.	2003-10-09
Data decoding method and circuit and information recording and reproducing apparatus using the same App 20030151838 - Sawaguchi, Hideki ; et al.	2003-08-14
Partial response demodulating method and apparatus using the same App 20020064242 - Mita, Seiichi ; et al.	2002-05-30
Apparatus, signal-processing circuit and device for magnetic recording system App 20020060869 - Sawaguchi, Hideki ; et al.	2002-05-23
Method of servo writing for magnetic recording system, magnetic recording system App 20020057509 - Nishida, Yasutaka ; et al.	2002-05-16
Decoding circuit and information processing apparatus App 20020040462 - Sawaguchi, Hideki ; et al.	2002-04-04
Method of controlling read write operation of a magnetic disk apparatus App 20020030915 - Nishida, Yasutaka ; et al.	2002-03-14
Device and signal processing circuit for magnetic recording, magnetic recording apparatus App 20020012185 - Sawaguchi, Hideki ; et al.	2002-01-31
Signal processing circuit free from erroneuos data and the information storage apparatus including the signal processing circuit App 20020003675 - Tomiyama, Futoshi ; et al.	2002-01-10
Partial response demodulating method and apparatus using the same Grant 6,337,889 - Mita , et al. January 8, 2	2002-01-08
Decoding circuit and information processing apparatus Grant 6,334,201 - Sawaguchi , et al. December 25, 2	2001-12-25
Digital magnetic recording/reproducing apparatus App 20010036236 - Kobayashi, Naoya ; et al.	2001-11-01
Magnetic disk apparatus with data track reassigning function Grant 6,310,741 - Nishida , et al. October 30, 2	2001-10-30
Signal processing circuit free from erroneous data and the information storage apparatus including the signal processing circuit App 20010033444 - Tomiyama, Futoshi ; et al.	2001-10-25
Digital write-and-read method and signal processing apparatus Grant 5,881,071 - Kuznetsov , et al. March 9, 1	1999-03-09
Decision feedback equalization circuit Grant 5,594,756 - Sakurai , et al. January 14, 1	1997-01-14
Magnetic recording/reproducing with added intersymbol interference to obtain a partial-response code Grant 5,539,588 - Sawaguchi , et al. July 23, 1	1996-07-23
Signal processing apparatus having A/D conversion function Grant 5,519,398 - Satoh , et al. May 21, 1	1996-05-21
Magnetic recording and reproducing method using phase discrimination and apparatus therefor Grant 5,467,232 - Ouchi , et al. November 14, 1	1995-11-14
Information processing apparatus for processing reproduction signal having nonlinear characteristics Grant 5,418,660 - Sato , et al. May 23, 1	1995-05-23
Magnetic recording and reproducing apparatus, reproduction signal processing apparatus, and reproduction signal processing method Grant 5,400,189 - Sato , et al. March 21, 1	1995-03-21
Magnetic recording data storage system Grant 5,325,244 - Takano , et al. June 28, 1	1994-06-28

uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.

While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.

All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.